Okay for little jobs and fairly compact. for storage. The output volume is fairly low at 2.5 SCFM @ 90 PSI, 3.4 SCFM @ 40 PSI, and the tank is too small for anything more than maybe running a nail gun or blowing up tires. Not enough for running a paint gun, airgun, or tools that require more than a few cfm of air.
Oil-less and professional really don't belong in the same sentence when you're talking about air compressors. Professionals who use the compressors all day long would wear this out within a year and the piston rebuild kit is around $50. Like most low end oil-less compressors, this is going to be fairly loud as the manual says the noise level is 90dB.